Cluster-burner for incandescent lamps.



. 1. McKENNA. CLUSTER BURNER FOR INCANDESCENT LAMPS.

APPLICATION FILED MAY 6. 19M.

Patented July 11, 1916.-

INVENTOR WITNESSES 'ms mums nzrsns acumen-1.1mm. WAsmnnmN. n c.

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JAMES MCKENNA, OF GLOUCESTER CITY, NEW JERSEY, ASSIGNOR T WELSBACI-I LIGHT COMPANY, OF GLOUCESTER CITY, NEW JERSEY, A CORPORATION OF NEW JERSEY.

Application filed May 6, 1914.

To all whom it may concern:

Be it known that I, JAMES MOKENNA, a citizen of the United States, residing at Gloucester City, Camden county, New J ersey, have invented a new and useful lfmprovement in Cluster-Burners for Inca-ndescent Lamps, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification, in which- Figure 1 is a top plan view of my improved burner; Fig. 2 is a vertical section on the line IIII of Fig. 1; Fig. 3 is a plan view of the bottom half of the burner; Fig. d-is a cross section on the line IVTV of Fig. 3; Fig. 5 is a top plan view of the upper half of the burner; Fig. 6 is a section on the line VIVT of Fig. 5; and Fig. 7 is a perspective view of the gauze impedance.

My invention relates to vertical cluster burners for inverted incandescent lamps, and is designed to provide a simple,-cheap and effective construction for the burner body. These burner bodies have been cast to form, but the casting is diflicult and expensive. I have found that I can make these burners cheaply and rapidly by making themin two parts, preferably, of sheet metal, with a generally horizontal division between the parts, which are seamed or otherwise secured together after drawing or forming the parts.

In the drawings, Figs. 5 and 6 show the upper half of the burner, which is seamed or drawn out of sheet metal, with the body portion 2 and the diverging arm portions 8. This drawn half is provided with side flange portions 4, to assist in forming the seam with the lower portion. The lower half of the burner is shown in Figs. 3 and 4, and is also drawn up from sheet metal, having three arms 5 of trough shape connected to the central ring portion, each having a depending boss portion 6 at the ends of the arms. This lower portion is inserted within the flanges of the upper portion and the seam then formed between the two in the usual manner of sheet metal seaming, all as shown in Fig. 1.

Prior toseaming the parts together, the lower half shown in Figs. 3 and a is provided with the brass tube portion 7, which has a shoulder 8 and an upwardly extending part 9, beaded within the central hole in the lower half of the burner. The burner Specification of Letters Patent.

Patented July ii, mic.

Serial No. 836,667.

tips 10 are provided with thin upwardly extending collars 11, which are expanded within the boss portions 6 of the lower half of the burner. Thus the tube 7 and the burner tips are secured within the lower half of the burner body and the upper half is seamed thereto. The cylindrical gauze impedance 12 may he slipped up within the tube 7 into the central chamber or manifold, or may be put in place before seaming the parts of the burner together. The skirt portion 13, which is also preferably used, may he slipped up on the tube portion 7, this skirt serving to carry around the gas from the burners and assisting in lighting them from the pilot light.

The advantages of my invention result from the forming of the burner in a plurality of divided parts, each drawn or pressed from sheet metal, as this gives a rapid, cheap and effective construction. Changes may be made in the number of branches, in the method of dividing the parts, the shape of the drawn portions, etc., without departing from my invention.

Either or both portions of the burner may be made of refractory material; the burner nozzles may be cemented or otherwise secured in place, and other changes may be made, since I consider myself to be the first to form the burner of a plurality of parts with the burner nozzle secured in the lower part. The material of one or both parts may be varied as desired, and the parts may be secured together by cementing or burn ing, if made of refractory material.

I claim:

1. A cluster burner for inverted incandescent lamps having a plurality of burner arms formed with substantially horizontal portions, and comprising upper and lower members secured to each other, there being a seam between said members which extends through the substantially horizontal portions of all of the arms of the burner, substantially as described.

2. A cluster burner for inverted incandescent lamps having a plurality of outwardly and downwardly extending hollow arms, there being a central chamber in said burner communicating with the spaces of all of the arms, said burner being formed of two generally similar horizontal parts seamed together, the lower part having depending tips at the ends of the arms, and

said seam extending in a general horizontal -direction through the central portion of the outwardly extending portions of'all of the arms above the upper ends of said tips;

substantially as described.

3. A cluster burner for inverted incandescent lamps formed of upper and lower members each having a body portion and radially extending arms, there being a central cavity in the body portion of each member, and a cavity in each of the arms of each of said members communicating with the central cavity, the central cavities of the members forming a manifold and the other cavities forming the conduits for conducting gas to the burners, said members being secured to each other by a seam which extends in substantially a horizontal direction through the body portions and the arms, and a burner tip secured to the lower end of each arm; substantially as described.

4;. A cluster burner for inverted incandescent lamps, comprising two generally similar sheet metal stampings seamed together at their meeting edges, each stamping comprising a hollow central portion and a plurality of radial arms, said seam extending through the central portion and all of the arms, the lower stamping having a plurality of openings below the seam and burner tips secured in said openings; sub stantially as described.

5. A cluster burner for inverted incandescent gas lamps, comprising generally similar upper and lower stampings seamed together and forming a central manifold chamber with radial hollow arms extending therefrom, said seam extending through the central portion and all of the arms, the lower stamping having an opening at the bottom of its body portion and also an opening in the bottom of each of said arms, a mixing tube secured in the first named opening and extending downwardly therefrom, and depending burner tips secured in the openings of the arms; substantially as described.

6. A cluster burner for inverted incan; descent lamps, formed of a plurality of stampings, each of said stampings having a body portion and radially extending arms, the upper member having an annular recess in the body portion and a recess in each of said arms, said seam extending through the central portion and all of the arms, the

lower member having an annular recess in the body portion and a recess in each of the arms, there being a radial seam at the junction between said members, there being openings in each of the arms of the lower member, and a burner tip secured in each' of said arms below said seam, substantially as described.

7. A cluster burner for inverted incandescent gas lamps, comprising generally similar upper and lower stampings seamed together and forming a central manifold chamber with radial hollow arms extending therefrom, the lower stamping having an opening at the bottom of its body portion and also an opening in the bottom of each of said arms, a mixing tube secured in the first named opening and extending downwardly therefrom, depending burner tips secured in the openings of the arms, said stampings having a seat in both of said members for a cylindrical impedance between the tube and the radial arms, said horizontal seam holding the two members in position with relation to each other and retaining the impedance in position in the structure; substantially as described.

8. A cluster burner for inverted incandescent lamps, comprising two generally similar sheet metal stampings seamed together at their meeting edges, each stamping comprising a hollow central portion and a plurality of arms, said seam extending through the central portion of all of the arms, an impedance seated within the hollow central portion of both stampings, the lower stamping having a plurality of inwardly flaring openings below the seam, and burner tips expanded within said openings; substantially as described.

9. A cluster burner for inverted incandescent lamps having a plurality of arms formed with substantially horizontal portions, and comprising upper and lower members, there being a clenched seam connecting said members to each other which extends through the central portion and the horizontal portion of all of the arms of the burner; substantially as described.

In testimony whereof, I have hereunto JAMES MoKENNA.

set my hand.

Witnesses:

J. H. Jo-HNsoN, EDGAR LENTON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, I). C. 

